144 0001835458 XXXXXXXX LIVE 0001730430 Kiniksa Pharmaceuticals International, plc 001-38492 23 OLD BOND STREET, FLOOR 3 LONDON X0 WIS 4PZ 7814319100 Ragosa Mark Officer Class A ordinary shares Charles Schwab & Co., Inc.

3000 Schwab Way Westlake TX 76262

20000 820000.00 43472928 10/28/2025 NASDAQ Class A ordinary shares 10/28/2025 Employee Stock Option Exercise Kiniksa Pharmaceuticals, Ltd. N 20000 10/28/2025 Broker Payment for Cashless Exercise N Mark Ragosa

3 OLD BOND STREET, FLOOR 3 LONDON X0 W1S 4PZ

Kiniksa Pharmaceuticals International, plc 08/04/2025 18889 621259.00 The options on this filing may be sold over various dates. 10/28/2025 09/03/2024 Mark Ragosa